How do you calculate max BPM? I understand it should be 220 minus your age?

A resting heart rate of 40-50 is, indeed, impressive, top flight endurance athletes like Bradley Wiggins have a RHR of around 40 BPM (though Miguel Indurain reputedly measured at 28 BPM). For comparison, us ordinary mortals usually come in at between 60 and 70 BPM resting

Max heart rate should never be calculated, it should be measured as it is totally personal. It might generally decline with age, but anyone actual max won't align with that formula beyond chance. Mine has always been around 190-200 depending on how fatigued I am. I've never seen any correlation between my fitness and my max heart rate.

Typically if you sign up to a (rubbish) gym they will do some max HR calculation from your age then set you training zones for cardio... but it's not worth the paper it's written on and could even be dangerous, yet you see this calculation often repeated.

Resting heart rate varies. If I measure it first thing in the morning laying down it's usually in the high 30's (but I've measured 28!). Typically sat down middle of the day, relaxed it will be somewhere between 40 and 50.

I am surprised though how high it is sailing. I don't perceive it to be as hard as cycling. However, sailing you have a lot of other things to focus on beyond how hard you're working.

By max BPM in this context I mean what is a safe max when exercising. I'm 65 and have a slight heart abnormality (which is been monitored and has not been getting worse over the last 10 years). I had an episode of AV a few years ago during a pretty intense light wind Raceboard which was pretty frightening so I'm a little conscious of not overdoing it these days.

There is no safe heart rate. Max is just the highest you can get your heart to beat. You find out your max by working as hard as you can til you can't anymore, and that's the max. Your heart doesn't explode if it hits max. It's not some deadly limit. You just get exhausted pretty quick and it drops.

Stressing your heart over time will be bad for it... but so is not stressing it at all. If you have a condition, working your heart harder may put you in danger, a doctor may be able to advise... but if they give you a number using a 'max heart rate' guess scale then, I'd get a different doctor. I doubt many people who have heart attacks were at 'max' when it happens.

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